National;
Laboratory-for;
Molecular;
Sciences,;
Laboratory;
of;
Polymer;
Physics;
and;
Chemistry,;
Institute;
of;
Chemistry,;
Chinese;
Academy;
of;
Sciences,;
Beijing;
100190,;
China;
University;
of;
the;
Chinese;
Academy;
of;
Sciences,;
Beijing;
100049,;
China;
木棉纤维; 吸声性能; 堆积密度; 声学性能; 阻尼性能; 吸声系数; 纤维长度; 环境友好型;